G3 rpm/gear ratio

those that have done the swap, what ratio are you running? I have read different things as far as the rpm the g3 will be happy cruising at.

I am ready to pull the trigger on a rear end, but want to buy once(hopefully).

I thought I wanted a 3.55 or 3.23 to keep highway rpms down, but read it may be unhappy there.

Thoughts?

6.1
46rh
27 inch tire